concentration of iron ore beneficiation washing

Washing is the simplest iron ore concentration process that takes advantage of the high specific gravity and comparatively coarse size of the iron bearing minerals to separate them from the finer, lighter, siliceous gangue which is predominantly quartz and clay minerals.

Various standard beneficiation techniques viz. sizing, classification, hydrocyclone, jigging, magnetic separation, advanced gravity separation, and flotation are employed using only water for beneficiation of the iron ore .

These present beneficiation results provide ways for proper application of surface-active agent in iron ore washing plants and to increase iron value in iron ore fines and slime; and nevertheless, the dispersed phase may be converted to a value-added product, such as pigment.

This is carried out by the processes of beneficiation of the iron ore. Beneficiation of the ore is the process where ore is reduced in size and gangue is separated from the ore. Since each of the iron ore deposit has a unique mineralogy, the beneficiation process is specific to each deposit.

To obtain a uniform product, ores of different grades, compositions, and sizes are usually blended. The term beneficiation in regard to iron ores encompasses all of the methods used to process ore to improve its chemical, physical and metallurgical characteristics in ways which makes it a more desirable feed for the iron making furnace.

The Fe values and Al 2 O 3 /Fe and Al 2 O 3 /SiO 2 ratios in the concentrates (Figures 8 and 9) showed that 5–10 ppm of AD 200 is sufficient for the beneficiation at pH 8 from iron ore slime. 3.3. DRIFT Spectra of Dispersed Phase